Apparatus and method for forming an opening in patient's tissue
US10293129B2 · kind B2 · utility
190Cited by
23References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2017 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | May 12, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8206
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical instrument system for use in a surgical procedure is disclosed. The surgical instrument system may include an instrument configured to puncture the tissue of a patient and detect when the instrument has entered a lumen of the patient's body. Liquid may be present in the lumen or the lumen may be devoid of liquid or tissue. The instrument is configured to determine when the needle tip is engaged with a portion of patient's tissue and determine when the needle tip has exited that portion of the patient's tissue by detecting changes in properties of the tissue, specifically, electrical resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.